At 87db I'm going to say no. In my experience with 300b amps you need at a min 95db to have enough for dynamic swings. also to consider SET 300b's amps really only work properly in the first half of the power delivery they tend to distort fast at the upper levels of their power range. if your listening at background levels sure but if you want dynamics and a good range of volume for the normal listener then no. I ran 94db 8ohm speakers on a 300B amp and if I was honest it wasn't enough. only 8wpc but really only 4-5wpc usable IMO.
Fritz Carrera 7 Be:
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Impedance: |
8 Ohms nominal |
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Sensitivity: |
87 db (1 Watt, 2.83 V @ 1 Meter) |